Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2018-5732

Disclosure Date: February 28, 2018
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 –> 4.1-ESV-R15, 4.2.0 –> 4.2.8, 4.3.0 –> 4.3.6, 4.4.0

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • isc

Products

  • dhcp,
  • dhcp 4.1-esv,
  • dhcp 4.1.2,
  • dhcp 4.4.0

Additional Info

Technical Analysis